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发明名称
KEYBOARD DISPLAY DEVICE
摘要
申请公布号
JPH02230422(A)
申请公布日期
1990.09.12
申请号
JP19890052294
申请日期
1989.03.03
申请人
NEC CORP
发明人
UMEKI TAKANORI
分类号
G06F3/02;G06F3/153
主分类号
G06F3/02
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